Kappel, Erik and Stefaniak, Daniel and Spröwitz, Tom and Hühne , Christian (2011) A semi-analytical simulation strategy and its application to warpage of autoclave-processed CFRP parts. Composites Part A: Applied Science and Manufacturing, 42, pp. 1985-1994. Elsevier.
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Official URL: http://www.sciencedirect.com/science/article/pii/S1359835X11002855
Abstract
The manufacturing of composite structures is accompanied by fabrication induced deformations. Those deformations are undesirable and lead to transgression of geometric tolerances in the finished parts. In order to get the part within aspired dimensional tolerances, geometrical compensation of the tool is nec- essary. This often iterative conducted tooling-rework is commonly time consuming and costly. This paper presents an shell element based. semi-analytical simulation approach focusing on warpage deformations due to tool part interaction, in order to account for manufacturing induced deformations within the tool design process. Deviation measurements on test specimen level serve as inputs for the calculation of equivalent coefficients of thermal expansion according to the proposed analytical model. Thus, ‘warpage properties’ of different prepreg – tool–material combinations are determined. The use and the practica- bility of the developed approach is demonstrated by means of the calculation of a warpage compensated tool surface.
Item URL in elib: | https://elib.dlr.de/75337/ | |||||||||||||||
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Document Type: | Article | |||||||||||||||
Title: | A semi-analytical simulation strategy and its application to warpage of autoclave-processed CFRP parts | |||||||||||||||
Authors: |
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Date: | December 2011 | |||||||||||||||
Journal or Publication Title: | Composites Part A: Applied Science and Manufacturing | |||||||||||||||
Refereed publication: | Yes | |||||||||||||||
Open Access: | No | |||||||||||||||
Gold Open Access: | No | |||||||||||||||
In SCOPUS: | Yes | |||||||||||||||
In ISI Web of Science: | Yes | |||||||||||||||
Volume: | 42 | |||||||||||||||
Page Range: | pp. 1985-1994 | |||||||||||||||
Editors: |
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Publisher: | Elsevier | |||||||||||||||
Status: | Published | |||||||||||||||
Keywords: | Finite element analysis, process-induced warpage, layered structures, numerical analysis, tooling | |||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
HGF - Program: | Aeronautics | |||||||||||||||
HGF - Program Themes: | Aircraft Research (old) | |||||||||||||||
DLR - Research area: | Aeronautics | |||||||||||||||
DLR - Program: | L AR - Aircraft Research | |||||||||||||||
DLR - Research theme (Project): | L - Structures & Materials (old) | |||||||||||||||
Location: | Braunschweig | |||||||||||||||
Institutes and Institutions: | Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures | |||||||||||||||
Deposited By: | Stefaniak, Dr. Daniel | |||||||||||||||
Deposited On: | 30 Mar 2012 10:05 | |||||||||||||||
Last Modified: | 10 Jan 2019 15:47 |
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